| 摘要 |
<p>A sponge hydration engine device (10) comprising a rigid dry absorbent twisted shaped sponge body (18) constructed of a laminated plate of sponge material with layers (14, 16) of differing density. The twisted sponge (18) when hydrated substantially untwists thereby transmitting its stored mechanical energy enabling the performance of work by applying torque, causing rotation of a drive member mounted on one end of the sponge body (10). Another embodiment uses a folded sponge body (10) in the form of a leaf spring which when hydrated straightens out transmitting its stored mechanical energy to its arms.</p> |
